Improvement in self-winding telegraphic registers



J. J. CLARK. SELF WINDING REGISTER.

Patented Oct. 18, 1853.

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UNITED STATES PATENT OFFICE.

JAMES J. CLARK, OF PHILADELPHIA, PENNSYLVANIA.

Specification forming part of Letters Patent No. 10,128, dated October 18, 1853.

of the winding part of my improved register.

Fig. 2 represents a view of the connections of the battery, magnet, and break-circuit wheel, hereinafter described.

My improved self-winding apparatus consists in attaching to an ordinary Morse telegraph-register a second electro-magnet, (seen at A, Fig. 1,) an armature, R, attached to one extremity of a lever, B, and a click, 0, at the other extremity. This click works into a ratchet-wheel, E. To the other extremity of the lever, behind the armature, a reactingspr ng, S, is attached. On the shaft T of the ratchet-wheel E another ratchet-wheel, F, of larger diameter, is placed, with a fixed click, G, catching into the teeth of the wheel F at one part of its circumference.

On the same shaft with the ratchet-wheels E and F is a small cog-wheel, H, working into another larger cog-wheel, K, to the shaft of which last wheel the spring is attached. The other end of the spring is fixed to the box, as in a watch.

The large wheel L is fastened to the springbox and revolves with it. This cog-wheel L gears into the cog-wheel P, placed on the first shaft, which communicates motion to the train of register wheels. On the shaft of P is also placed a break circuit wheel, M, consisting of a metallic wheel with broad-faced teeth X X. These teeth X X are faced with platina, and against them a straight metallic spring, J, rests, so that as this break-circnit wheel revolve's the spring J will fall into the cavities between X X and alternately press againstthe platina face of the teeth X X.

The brealecircuit wheel M, the coils ot' the magnet A, and the battery P Z are connected together as follows: (See Fig. 2.) A wire leaves the extremity of the battery P and proceeds to the coils of the magnet A, thence to the spring J, thence through the platina-f'aced teeth X Xof the wheel'M, thence to the metallic frame-work of the instrument to Q, and thence back to the other extremity of the battery at Z.

The operation of the several parts of my improvement is as follows: When the spring unwinds and propels the train of registerwheels it also rotates the break-circuit wheel M. As the wheel M revolves the spring J a1- ternatel y strikes the face of the teeth X X, and falls into the cavities between them. Each time J (the spring) presses on the teeth X X, it by so doing closes a galvanic circuit extendin g from the battery around the winding-magnet. (hen the spring falls between the teeth this circuit is broken. The winding-magnet A, thus caused alternately to attract and release the armature R and the lever B, attached thereto, moves the-ratchet-wheel E through the space of one tooth at each vibration.

The number of teeth on the break-circuit wheel M is so proportioned that the lever B is caused to vibrate with sufficient rapidity to revolve the spring-shaft (through its gearing with the shaft T) with the same velocity that the spring unwinds itself to revolve the train of register-wheels.

By my arrangement thus described it will be seen that the unwinding is itself made to start and regulate the action of the windingmaguet. hen the train of register-wheels is stopped the break-circuit wheel ceases to re volve and the winding-magnet ceases to vi brate the armature and lever.

To start the train of register-wheels you turn the wheel K, which winds up the spring, which is fastened to the same shaft. The break-circuit wheel M, revolving with the train, breaks and closes the galvanic circuit, and thus aiiects the winding-magnetA and causes the lever B to vibrate with sufiicient rapidity to wind up the spring as fast as its own action would unwind it.

If the spring has toogreat atension and the train of wheels revolves too rapidly, by raising the straight spring J from the teeth of the break-circuit wheel and holdingit, the spring will unwind without the winding operation going on when it gets to the speed required, then the spring J is sufl'ered to descend again and the winding operation commences,as above described. Hence it will appear that the de- 2 EQMHQS gree of tension to which the spring is wound breakcircuit wheel, and spring with thetrain up determines the velocity of the movementof of wheels of an ordinary telegraph register,

the train as well as the velocity of the windin the manner anrlfor the purpose substaning apparatus, and thus the register will al: tially as hereinbefore described.

ways he wound up with the same rapidity that it unwinds. JAMES J. CLARK. i

Having thus described my improvement, a.

what I claim, and desire to secure by Letters Witnesses:

Patent, is- JNO. E. SHAW,

The combination ofthe winding-magnet, the CHARLES D. FREEMAN. 

